From Rotterdam and Amsterdam:
A4 direction The Hague (Den Haag) > A12 Prins Clausplein > exit Bezuidenhout/Mariahoeve > Traffic lights go left on to the Schenk viaduct > end viaduct : traffic lights > turn left around (u-turn) onto the parallel road which is the Weteringkade > aprox. 500 mtrs. on the right hand side the premises on the corner nr. 113

From Utrecht:
A12 direction The Hague (Den Haag) > Prins Clausplein > exit Bezuidenhout/Mariahoeve > Traffic lights go left on to the Schenk viaduct > end viaduct : traffic lights > turn left around (u-turn) onto the parallel road which is the Weteringkade > aprox. 500 mtrs. on the right hand side the premises on the corner nr. 113

From Wassenaar/Voorschoten:
N44 direction The Hague (Den Haag) all the way to the end (T-junction with traffic lights) turn left > trough the tunnel > 2nd traffic lights before going under the viaduct turn right > after 10 mtrs go left and immediately go right and stay under the viaduct > park your car here > almost opposite you’ll find the premises on the corner Weteringkade 113.